Name: The Greatest Bedtime Story Ever
Author: https://www.simonandschuster.net/authors/Jessie-Sima/568901424
ISBN: 9781665974530

About The Book

From the New York Times bestselling creator of Not Quite Narwhal Jessie Sima comes a fantastical tale of how an elf facing a dangerous dragon was inspired to write The Greatest Bedtime Story Ever to save himself!

Are you ready to hear the GREATEST BEDTIME STORY EVER?

Good, because THE GREATEST BEDTIME STORY EVER came to be written in the most amazing way. It all started when an elf, who happened to be a great writer, stumbled upon his greatest challenge—a sleep-deprived dragon! Nothing could get the dragon to fall asleep. Nothing except…THE GREATEST BEDTIME STORY EVER.

Any other elf would have fled. But not a master storyteller elf! Confident in his skills, he set to work writing a story that was so entertaining, so thrilling, but also so sleep-inspiring it would be forever known as…

THE GREATEST BEDTIME STORY EVER!!

So.

Are you ready to hear it now?

About The Author

Jessie Sima

Jessie Sima is the author and illustrator of bestselling picture books, including Not Quite Narwhal; Love, Z; Hardly Haunted; and more. They grew up in a small town in southern New Jersey and now write and draw in a creaky house in New York state. When not making books, Jessie can be found reading graphic novels, watching scary movies, and playing outside with dogs. You can visit them online at JessieSima.com.

About The Illustrator

Jessie Sima

Jessie Sima is the author and illustrator of bestselling picture books, including Not Quite Narwhal; Love, Z; Hardly Haunted; and more. They grew up in a small town in southern New Jersey and now write and draw in a creaky house in New York state. When not making books, Jessie can be found reading graphic novels, watching scary movies, and playing outside with dogs. You can visit them online at JessieSima.com.

Product Details

Publisher: Simon & Schuster Books for Young Readers (June 9, 2026)
Length: 56 pages
ISBN13: 9781665974530
Grades: P - 3
Ages: 4 - 8

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Raves and Reviews

"This funny and self-referential greatest story ever plays with picture book conventions and gives young readers an enjoyable twist."

– -Shelf Awareness
STARRED REVIEW, 4/22/26

"Pulling out all the “once upon a time” stops, this sideways fairy tale from Sima (Snow Kid) is both dark enough to feel delectably mischievous and silly enough to remain firmly in the laugh zone."

– -Publishers Weekly, 3/20/2026